Improvement in thrashing-machines



A. wEM'PLE.

Thrashing-Machines. AN0. 137,809, Patented Aprl, 1373.4

ANDREIV` WEMILE, OF CHICAGO, ILLINOIS.

IMPRQvl-:MENTIN TH Specification forming part of Letters Patent No.

RAsHlNe-MACHINES.

137,809, dated April 15, 1873 application .filed June 15, 1872.

To allwltom it may concern:

Be it known that I, ANDREW WEMELE, 'of the city of Chicago, in the county of Cook and State ofl Illinois, have invented certain new and useful Improvements in Thrashing-Machines, of which the following is a full description, reference being had to the accompanying drawing making a part of this specication, iii which- Figure l represents a longitudinal vertical section; Fig. 2, a top 'or plan view with a portion of the upper thrashing-plate and cover and the top of the separator removed.

This invention relates to certain improvements in the machine patented to me April 23, 1872; and its nature consists in an improved construction of the thrashing-plates, in an improved arrangement of the fans, and in certain improvements in the separating and cleaning devices.

In the drawing, A represents the bed-frame, mounted upon a suitable carriage; B, crossties, and also bottom plate of the thrashingchamber; C, uprights` Aforming part of the frame-work, and supporting the sides of the thrashing-chamber D4 lower thrashin g-plate; E, feeding-board; F, 'feeding-tables; G, upper thrashing-plate; H,'fan and fan-case; I, windboard; J K, sieve; L, wire rods standing over the sieve; M, similar rods over the board J, forming part of the sieve; N, shaft for revolving the carrying-belt O; P, board behind the front portion of the belt O; Q, endless apron or straw-carrier; It,;separatorcase; S, adjustable spout; T rain-board UV, hinged boards or valves for"`regulating t e draft into and through the separatoryV, platform for atltendant or driver; X, shaft for driving the thrashing-belt, mounted with suitable pulley or gear wheels for operating the machine; Y, rods or spurs on the periphery of the revolving thrashing-plate.

The frame-work of the machine is made of wood, and the other parts of iron or other suitable material. Th revolvin dthyhing-plate D is made @mams proviuawitt thrashing-teeth onlyuaaorpelaritsggtgge. The stationaryT plate Gsmadefa'crrespondtwo increasing toward the center--and is provided with thrashing-teeth at or near its outer edge. One row of teeth on the revolving plate and two on the stationary plate, or two on l one and three on the other, may be used; the

least number of teeth that will do the thrashing are preferred, for the reason that as the number of teeth are increased the feeding of the straw through the thrasher is impeded. The stationaryplate Gr is provided at the front with a depression or feeding-board, E, to facilitate feeding, and at the sides of said depression with one or more feedtables. The case surrounding the thrashing devices is provided with an opening at Z, through which the strawr and grain are discharged into the separator Z. Below this case I place a fancase, H, with a suitable fan,'from which I di rect ablast into the lower part of the separa-tor. By means of this fan I can regulate the blast of the thrashing-case, and it enables me to use a lighter blast in said case; it also divides the currents in the separator so that the igrain is less liable to be blown over or pass out with Vthe straw. The straw and grain, passing into the separator at Z, fall on the rods M, where they take a part of the blast; from thence onto the board J and sieve K, where they take the remaining portion of the fau-blast the principal portion of the grain passes through the sieve into the spout A.

`To prevent the straw from accumulating in the bottom of the separator I provide an endless belt, O, which is mounted on suitable carrying-rollers, and provided with hooks, pins, or other projections to carry up the straw. This belt is inclined toward the top, as shown, so as to allow any grain that may be caught in the straw or thrown in by the operation of the machine to fall out. I usually make this belt in strips and place it behind the board P, as shown, to prevent the grain from passing to the back of the separator. The straw carried by the blast up this belt or series of belts passes over the shaft N onto the endless belt Q, which is also preferably made in strips, and out at the spout S. The spout S may be hinged so as to be raised or lowered by any suitable ing form-the opening or space between the device.

At the top of the separator I place an adjustable board, T, by which the blast in the discharge-spout is regulated, and which catches any grain that may pass over the shaft N and directs it downward. Any grain which may fall through the belt or series of belts Q will pass to the bottom of the spout, and from thence fall to the bottom of the separator into the spout A. The valves or boards UV perform the same ofce in this as they do in the machine heretofore patented to me. rEhe rods 0r bars Y occupy the place of the triangular fans shown in the patent to me April 23, 1872. rIhey may be made, however, of round or square rods, and I usually apply six of them. I have found them to be sufcient to discharge the straw from the thrashingcase.

What I claim as new is as follows:

1. The combination of the thrashing-plates D and G and fan-rods Y with the feed-table or opening E and tables F, substantially as specified. v

2. The combination of the fan H with a sep;

arating-chamber` and the thrashing-plates DJA and Gr and their case, substantially as and for the purposes specified.

3. The carrier O, in combination with a scparator, substantially as and for the purpose 

